Bloody foils, have seen two humming through the line up, SUP's yes, but now available on non tow in surfboards, looked at one in a surfshop last week, a sticker on the foil states 'To avoid injury do not position yourself between wave and foil'!!. The 2018 Starboard catalogue has foil options for most 'surf' boards including a 7'4 inflatable.we're doomed..........